Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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Greg55_99
Greg Williams

(92 posts)

Registered:
11/01/2007 07:12PM

Main British Car:


Re: Rover V8 Build, $5000 Budget
Posted by: Greg55_99
Date: December 14, 2016 09:37AM

340 and 350 cranks are the same.


MGBV8
Carl Floyd
Kingsport, TN
(2964 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: MGBV8
Date: December 14, 2016 11:51AM

215 vs 300

http://www.teambuick.com/reference/library/images/215_hrm_5.gif


Casey
Casey Crookston

(21 posts)

Registered:
12/09/2016 09:25PM

Main British Car:


Re: Rover V8 Build, $5000 Budget
Posted by: Casey
Date: December 14, 2016 05:42PM

Thanks for that picture Carl, I was searching to find a visual side by side comparison. I wonder how many cars that size is the difference between a go and no-go? I don't have a lot of experience with small engine bays, my last two projects were a '49 Ford F6 that went to Canada and a '67 Ford Falcon Futura that went to Australia before that. The gentleman with the engine said he would let me know by Saturday what he decides and the price.


MGBV8
Carl Floyd
Kingsport, TN
(2964 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: MGBV8
Date: December 14, 2016 07:08PM

My all-time fav Buick 300 powered MGB. I have driven it many times. It is so sweet!

[www.britishv8.org]


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5083 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: BlownMGB-V8
Date: December 15, 2016 12:09AM

M favorite too. Can't wait to see Chris' though.

Jim


danmas
Dan Masters
Alcoa, Tennessee
(555 posts)

Registered:
10/28/2007 12:11AM

Main British Car:
1974 MGBGT Ford 302

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: danmas
Date: December 15, 2016 12:05PM

Quote:
My all-time fav Buick 300 powered MGB. I have driven it many times. It is so sweet!

Probably the nicest MGB V8 on the road.


harv8
Martyn Harvey
Waterloo, Ontario, Canada
(170 posts)

Registered:
10/23/2007 10:09PM

Main British Car:
MGB Rover V8, TVR Chevy V8, MGB GT Ford V8

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: harv8
Date: December 15, 2016 12:06PM

I have a Rover 4.0 engine, Buick 300 heads, crank, and 90% of the parts needed to build a D&D Stroker motor.
Would love to sell this package for a very reasonable price. i've had it sitting around for a long time and realize I will never build it.



Scott68B
Scott Costanzo
Columbus, Ohio
(441 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: Scott68B
Date: December 15, 2016 01:27PM

Quote:

Quote:
My all-time fav Buick 300 powered MGB. I have driven it many times. It is so sweet!

Probably the nicest MGB V8 on the road.

I agree 1000%.


MGBV8
Carl Floyd
Kingsport, TN
(2964 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Rover V8 Build, $5000 Budget
Posted by: MGBV8
Date: December 15, 2016 01:54PM

Yours is right there with it, Dan! Even if you do have a Blue Oval under the bonnet. ;)


Casey
Casey Crookston

(21 posts)

Registered:
12/09/2016 09:25PM

Main British Car:


Re: Rover V8 Build, $5000 Budget
Posted by: Casey
Date: January 19, 2017 08:37PM

I thought I would give an update on some things. Martyn gave me a wonderful offer on his setup, but getting it across the border proved cost prohibitive. If anyone in Ontario is looking for a great start on a stroked Rover they should contact him. I contacted a auto yard in AU regarding a P76 crank; they said it would be $100 plus shipping. Shipping was $300. Greg has one with a flywheel for sale for $400 so that is probably the best deal your going to get if you are stuck on a P76 crank. The gentleman with the '64 Buick got back to me and said he would take $600 for the engine and aluminum 4 barrel intake-- a great deal as far as I'm concerned but he got cold feet and I didn't push him. In the mean time I have procured a complete '98 4.0 (craigslist, $75) and a set of stripped '64 300 heads (ebay, $150 after shipping).

I am still tossing ideas around on which direction I want to head eventually. The 4.0 would make a great high rev engine in its stock form (6.111 length rods works out to a 2.182 rod ratio), but as I am most interested in low to mid range torque it is not very appealing. The combo that is looking good right now is a 4.6 crank (I might be able to get if for free semi-locally if I trade some parts off the 4.0) and use the 4.0 rods with forged Icon 305 pistons (1.133 comp height) and the rod ratio works out to 1.892. Still spectacular. I would be .102 below deck and the compression ratio would be 9.8:1 but could easily be increased to whatever I want by milling the heads. 283 cubic inches would probably suit me just fine.

Doing this would allow me to use a lot of the parts I already have (covers, rods, etc) which would be nice. I haven't torn the engine apart yet but the seller said it ran when pulled, albeit a bit roughly. I am tempted to forgo the tophat liners and just pin the block. If they slipped in the future all I would be out is a set of rings, gaskets and my time (assuming I didn't allow the problem to go undetected for a long amount of time). With all this said I would plan on dropping the budget closer to $3000. I think its definitely doable whether I choose to go carbuerated or Megasquirt EFI. At any rate, it looks like the $5000 Rover V8 isn't a thing anymore.

Edit: I forgot to mention I would need to bore the wrist pin holes in the pistons .0179.

Edit: The 1.133 comp height Icons have a -10cc dish which I mistook to be a +10cc dome (Summit states all values as +x cc's even if its referring to the dish volume). The better option would be the 1.265 flat top Icons. They have a negative volume of 3.2ccs (valve reliefs) and would come .030 above deck for a compression ratio of 10.8:1 with the stock 300 chambers.



Edited 2 time(s). Last edit at 01/22/2017 08:04PM by Casey.


tr8todd
Todd Kishbach

(306 posts)

Registered:
12/04/2009 07:42AM

Main British Car:


Re: Rover V8 Build, $5000 Budget
Posted by: tr8todd
Date: January 20, 2017 06:50AM

FWIW, I just got back my 4.6 short block. Picked up the whole 2003 LR it was in for $250 and got most of that back on scrap value, so buy in was just the time I spent. Block had 2 out of round cylinders and needed to be bored. So did the 4.0 block I dropped off at the same time. Could not find oversized pistons for a 4.0 so that block is wrapped up and stashed in the garage. Found +.020 4.6L pistons in England with rings delivered to me for $350. Machine shop services and a new camshaft came in at around $1800. Estimate to do the heads with porting, Chevy 305/350 springs, cut the spring pockets for the new springs, and install new larger Vitesse valves was $1400. All in I should be right around $4K for a basic rebuild with a cam and head work just for the long block. Still need flywheel, tranny, clutch, bell housing, headers, intake, oil pan, and a bunch of other stuff. Luckily I have most of those parts. Further confirms my premise that if you are starting from scratch, just go get a LS variant. The LS3 package thats in my other current project was a $9800 buy in for everything. It was in a wrecked 2010 Camaro SS with 11,000 miles. Lost track of the parts I have sold off to recoup my initial outlay, but in the end, the LS swap is going to be about the same price as the 4.6 swap, and make close to twice the HP with an indestructible 6 speed transmission.
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